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	Electrosorption of p-nitrobenzoic acid at a gold electrode in perchloric acid solutions studied by using cyclic voltammetry, EQCM, in situ FTIRS and Raman spectroscopy
	Xiao, XY ; Sun, SG ; Sun SG(孙世刚)
	2000-06-26
关键词	PNBA adsorption Au electrode EQCM in situ FTIRS SERS
英文摘要	Adsorption of p-nitrobenzoic acid (PNBA) at an Au electrode in 0.1 M HClO4 solutions has been studied by combining cyclic voltammetry, electrochemical quartz crystal microbalance (EQCM), in situ Fourier transform infrared spectroscopy (FTIRS) and surface enhanced Raman spectroscopy (SERS). The adsorption of PNBA on Au electrode yields two current peaks appearing in the potential region between 0.3 and 1.0 V. A surface mass change of 74 ng cm(-2) has been determined by EQCM, corresponds to the adsorption, which associates to a variation of surface concentration of 2.8 x 10(14) molecules cm(-2). The spectral features observed from studies of in situ FTIRS and SERS illustrated, at molecular level, the potential-dependence properties of PNBA adsorption. The results demonstrated that the molecule of PNBA adsorbs in a Rat mode at potentials below 0.3 V and that at higher potentials it trends to adsorb in a vertical adsorption mode via its carboxylic group towards Au electrode surface. (C) 2000 Elsevier Science Ltd. All rights reserved.
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
内容类型	期刊论文
源URL	[http://dx.doi.org/10.1016/S0013-4686(00)00365-0]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Xiao, XY,Sun, SG,Sun SG. Electrosorption of p-nitrobenzoic acid at a gold electrode in perchloric acid solutions studied by using cyclic voltammetry, EQCM, in situ FTIRS and Raman spectroscopy[J],2000.
APA	Xiao, XY,Sun, SG,&孙世刚.(2000).Electrosorption of p-nitrobenzoic acid at a gold electrode in perchloric acid solutions studied by using cyclic voltammetry, EQCM, in situ FTIRS and Raman spectroscopy..
MLA	Xiao, XY,et al."Electrosorption of p-nitrobenzoic acid at a gold electrode in perchloric acid solutions studied by using cyclic voltammetry, EQCM, in situ FTIRS and Raman spectroscopy".(2000).

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